Gear casing for corn huskers



A. ROSENTHAL Feb. 5, 1929.

GEAR CASING FOR CORN HUSKBRS Filed Feb. 23, 1926 Patented Feb. 5, 1929.

UNITED STATES PATENT "o FFICE AUGUST ROSENTHAI, OF WEST ALLIS, WISCONSIN, ASIGNOIl- T ROSENTHAL MAIlU-i FACTURING 60., OF WEST ALLIS WISCONSIN.

i GEAR CASING FOR CORN H'USKERS. i

This invention relates to improvements;

in corn huskers and more particularly to an improved gear casing for corn huskers,

In corn huskers in which a plurality of rolls are provided, it isthe practice as disclosed in my patent No. 1,531,758 granted March 31, 1925. to arrange these rolls ma downwardly slanting direction andto oin them operatively at their lower ends by means of a plurality of intermeshing gears. These gears are carriedin a gear box.

In machines of this type, great clifiiculty is experienced in keeping the trash out of the gear boxes so that the gears may freely run and retain theclubricant.

This invention is. designed to overcome the above noted defects, and objects of such invention are to provide a novel means of sealing the gears in the gear box and pre-.

venting entrance of trash, grit or other material however finely this material may be divided.

Further objects are to provide a construction which may be easily applied to husking machines and which does not require a redesign of the machine. a

An embodiment of the invention is shown in the accompanying drawings, in which:

Figure l is, a view partly in section of the lower portion of the husking rolls with the gear box cover removed.

Figure 2 is a sectional view on the line 22 of Figure 1.

Referring to the drawings, it will be seen that the husking machine is provided with a frame work 1 to which the ears 2 of transverse members 3 are bolted. These transverse members 3 carry between them the bearings 4 for the trunnions 5 for the husking rolls 6. One of the husking rolls is usually the driving roll as described in greater detail in my above noted patent. For example, the roll marked 6 in Figure 1 is the driving roll and its bearing is held in place by means of bolts 7 which extend through the transverse members 3.

Means are provided for adjusting the lower ends of these rolls and such means may consist of pressure blocks 8 which are car ried in guides 9. The osition of these pressure blocks is controlled by means of the set screws 10. These pressure blocks, therefore allow adjustment of the bearings with reference to each other to take up wear.

of the husking rollsg a The trunnions o of the rolls extend into a gear box 11 which is provided with ears 12 bolted to the frame work 1 of themachine. Thisgear box is provided with open-topped: 1 pockets 13 within each of which apairof.

hardened discs 14 are positioned, andheld. 111 place by means of a. retaining bar 14. These discs are the thrust bearings for the rounded ends ofthc trunnions 5 as clearly:

shown in Figure 2. The trunnions are pro-v vided with inter-meshing gears 15 positioned within the gear box 11. Preferably the gear box is provided with a removable cover 16,

and as disclosed in my above noted patent,

a shield plate 17 extendsffrom the top of the gear box to 5, position over the smooth ends feres with the smoothand free running of c the machine. However, it is to be particularly noted that this rubber plate 18 conforms to the portions with which it con tacts and thus prevents any entrance of trash, grit or foreign material. the rubber plate is made of sufficient thickness to give it the necessary strength, and in actual practice it has been found highly effective and serviceable.

The material actually used for this cover plate or front plate consists of a fabricated rubber sheet in which a fabric body is formed within the rubber somewhat analogods to the construction of ordinary garden hose. Obviously, the exact material or manner of making this plate may be varied provided, however, it has the requisite strength,

providing the necessary flexibility and retaining its yielding characteristics. With a plate constructed as described above, it has been found that the material closes around the trunnions sufficiently to keep out the Obviously,

noted that all of the trunnions are sealed by this simple expedient and that individual sealing of each trunnion is avoided. Attempts to seal gear boxes have heretofore been made, but they either employ ordinary bearings Which are recognized as ineiiectual in keeping out foreign material or else they provide some form of stuffing box With its necessary.rolatively complicated construction.

It will be seen that a novel form of gear box closer has been provided which has all blocks may be adjusted to alter the relative position of the rolls, and yet the yielding and flexible plate 18 Will accommodate this motion and still maintain a sealed joint be tween the trunnions and the plate. In other Words, the plate will alter its shape slightly to accommodate adjustment of the hearings Without causing any opening to occur in the gear box seal.

Although the invention has been described in considerable detail, such description: is intended as illustrative rather than limiting as the invention may be variously embodied and as the scope of such invention is to be determined as claimed.

I claim:

1. The combination of a plurality of rolls, intermeshing gears carried by said rolls, a gear box enclosing the gears, and a flexible and yielding cover plate closing the gear box and apertured to receive the rolls.

2. The combination of a framework, a plurality of bearings supported from said framework, a plurality of rolls having trunnions extending through the bearings, gears carried by said trunnions, a gear box enclosing said gears and having an open portion presented towards said bearings, and a yielding and flexible plate apertured to receive the trunnions and covering the open portion of the gear box, said plate being located between said bearings and gear box.

3. The combination of a plurality of rolls ha *ing trunnions, a supporting member having a plurality of relatively movable bearings through which said trunnions project, means for adjusting the relative positions of said bearings, a plurality of intermeshing gears carried by said trunnions, a gear box enclosing said gears and having an open side through Which said trunnions extend, and a flexible and yielding plate apertured to receive said trunnions and closing the open side of said gear box.

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Visconsin.

AUGUST ROSENTHAL. 

